I've literally never heard of this before.....
1-2-3 Cake
You need two boxes of cake mix. One can be any flavor you prefer, but the other MUST be Angel Food cake mix.
Mix them together (shake them in a big bowl).
Then simply store the mixture in an airtight container until you get the urge for dessert.
Then just put three Tbsp. of the dry mixture in a big coffee mug and stir in 2 Tbsp of water.
Microwave it for one minute and you will have a single serving of cake!
Top with fruit, ice cream, whipped cream or whatever! Awesome for those of us who want something sweet every now without making an entire cake!